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4. Basket (tumbler) is out of adjustment or adjustment bolts (hardware) are loose.
5. Failed basket (tumbler) support.
6. Loose motor mount.
7. Failed idler or basket (tumbler) bearings.
8. V-belts either too tight or too loose.
S. Main burners are burning with a yellow flame...
1. Burner air shutters are out of adjustment.
2. Insufficient make-up air.
3. Dust or lint burner.
4. Insufficient gas pressure.
MECHANICAL COIN MODELS
A. Heating unit is not operating (all temperature selections)...
1. Fault in sail switch circuit...
a. Sail switch is out of adjustment or failed.
b. Sail switch is not closing or fluttering...
1) Check blower (impellor/fan) motor and rotation direction.
2) Restriction in location exhaust system.
2. Failed burner hi-limit circuit.
3. Failed lint compartment automatic (225° F [107° C]) safety thermostat circuit.
4. Failed heat selector switch.
B. Heat unit is not operating for only one (1) temperature selection...
1. Failed thermostat corresponding to selection made.
2. Failed heat selector switch.
C. Dryer operates but is taking too long to dry load...
1. Heating unit cycling on hi-limit thermostat.
2. Housekeeping...